Dessert

Lemon Mousse Recipe

Bright, silky lemon mousse that feels light on the palate yet indulgent, perfect for springtime desserts or a refreshing finish to any meal.

Imagine a spoonful of sunshine on your tongue, zesty and cool with a whisper of sweetness that wakes up your senses and makes you smile.

This lemon mousse is the kind of dessert you want for a relaxed Sunday afternoon, for a dinner party finale, or when you simply crave something tart and refreshing.

I first made it on a breezy porch at dusk, watching the sky turn pink while that silky lemon aroma drifted through the air and everyone leaned in for seconds.

Recipe at a Glance

⏱Prep Time20 mins

🔥Cook Time0 mins

🕐Total Time4 hours chill

🍰Servings6 servings

🇺🇸CuisineAmerican

🔢Calories~170 per serving

Ingredients

3 large egg yolks

1/2 cup granulated sugar

2 tablespoons all-purpose flour

1/4 teaspoon salt

1 cup fresh lemon juice (about 4 to 6 lemons)

1 teaspoon lemon zest

1 cup heavy cream

1/2 cup whole milk

2 tablespoons unsalted butter, cut into small pieces

Pinch of fine sea salt for finishing

Substitutions & Variations

★Use pasteurized egg yolks or egg substitute if concerned about raw eggs.

★Swap heavy cream with coconut cream for a dairy free version.

★Replace some of the lemon juice with lime juice for a twist on citrus flavor.

★Use powdered sugar instead of granulated sugar if you prefer a smoother texture.

Step-by-Step Instructions

1

Whisk yolks, sugar, flour, and salt

In a medium bowl, whisk the egg yolks, sugar, flour, and salt until smooth and pale to help create a thick, stable base.

2

Stir in lemon juice and zest

Whisk in the fresh lemon juice and zest until fully combined so the citrus flavor blooms through the mixture.

3

Warm milk and cream in a saucepan

In a small saucepan, combine the milk and cream with the lemon mixture over medium low heat, stirring gently until just steaming and coated on the back of a spoon.

4

Temper the egg mixture

Slowly pour a thin stream of warm lemon mixture into the egg yolk bowl while whisking constantly to prevent curdling.

5

Cook and thicken the mousse base

Return the tempered mixture to the saucepan and cook over medium low heat, stirring constantly, until it becomes thick enough to coat the back of a spoon.

6

Add butter for richness

Remove from heat and stir in the butter and a pinch of sea salt until melted and glossy for a silky finish.

7

Strain into a clean pitcher

Pour the mixture through a fine mesh sieve into a heatproof pitcher to remove any small cooked bits for extra smooth texture.

8

Chill until cold

Refrigerate the lemon mixture for at least 3 to 4 hours, or until thoroughly chilled, so the mousse will whip up light and fluffy.

9

Whip until soft peaks form

Using a hand mixer or stand mixer, whip the chilled mixture on medium speed until stiff peaks form for a cloud like mousse texture.

10

Serve or store

Scoop into glasses or a serving bowl, garnish with zest if desired, and keep covered in the fridge until ready to enjoy.

Pro Baker Tips

✓For extra stable mousse, whip the heavy cream separately until soft peaks and fold it into the lemon mixture gently.

✓Taste and adjust sweetness with an extra tablespoon of sugar if your lemons are particularly tart or mild.

✓Use a fine mesh sieve for straining to achieve a restaurant quality, velvety smooth mousse.

✓Chill your mixing bowl and beaters in the freezer for 10 minutes before whipping to help the mousse hold its shape.

Storage & Serving Notes

◆Store in an airtight container in the refrigerator for up to 3 days.

◆Freeze in a sealed container for up to 1 month and thaw in the fridge overnight before serving.

Serving Suggestions

Serve this lemon mousse in elegant glasses with fresh berries or a few curls of lemon zest on top.

›Pair with shortbread cookies for a buttery crunch.

›Float a few raspberries on top for a pop of color and extra tart contrast.

›Drizzle lightly with honey or a berry coulis for a dessert that looks restaurant worthy.

Frequently Asked Questions

Can I make this lemon mousse without an electric mixer?

Yes, you can whip the chilled mixture with a whisk by hand, but it will take longer and the mousse will be lighter if you use an electric mixer.

Why did my mousse turn out runny?

It may not have been chilled long enough or the egg mixture might have been undercooked; cook until it thickly coats the back of a spoon and chill thoroughly.

Is this mousse safe to eat with raw egg yolks?

Using fresh, high quality eggs and pasteurized yolks reduces risk; if you are concerned, use a pasteurized egg product or gently heat the yolks with sugar before mixing.

Can I make this ahead for a party?

Absolutely, prepare and chill it up to 24 hours in advance and top with whipped cream and zest right before serving.

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Go Make It!

I hope you enjoy making this bright lemon mousse as much as I do sharing it; it feels fancy yet simple, and every spoonful is a little burst of sunny, creamy joy.